Co-founded Daisy Systems, Sun Microsystems. Mastered the art of incubating startups at Kleiner Perkins Caufield & Byers. Helped create several multi-billion-dollar companies. Left four years ago to start own firm. Last year saw the IPO of Infinera, an optical equipment maker he backed in the bust. Infinera raised more than $300 million in venture capital, reached a market cap of $1.6 billion on its first day of trading. Has the deepest green portfolio of any individual: 35 companies ranging from wood-based biofuel and new types of batteries, engines and lights to water purification, clean cement and greener glass. Lambasts "idealists who will fall in love with anything that's green whether its cost effective or not." Writes papers on cellulosic ethanol and the impact of coal pollution on summer vacation. Aims to "help put the fossil in fossil fuels."